Retailers expect a “mystery” Apple device to be a big hit this Christmas.

We’re nearly halfway through July, and while the vast majority of us are enjoying the summer weather (unless you live in the U.K. where it continues to rain), retailers are already preparing for Christmas. U.K. retailer Currys and PC World just published its of predictions for the top ten gifts this holiday, and at number four it lists an “Apple mystery device” with pricing to be confirmed.

Apple seems to be pushing its “store-within-a-store” concept this year. The Cupertino company has already established stores within Best Buy in the U.S., and it has plans for a further 25 to be installed within Target stores. But it seems the concept is going international, with plans for an Apple retail store within the world famous Harrods department store in London.